Type-writing machine.



PATENTED MAY s', 1906.

H. A. MOYER & E. G. LATTA. TYPE WRITING MACHINE.

APPLICATION FILED AR. 1B. 1905.

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PATENTED MAY 8, 1906. H. A. MOYBR L E. G. LATT-A.

TYPE WRITING MACHINE. APPLIOATION FILED APR.18.1905.

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WJTNESSES.-

PATENTED MAY 8, 1906.

H. A. MOTTA A LG. T.ATTA. TYPE WRTTTNG MACHINE.. APPLICATION FILEDAPB... 18. 1905. v

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i vLfm//ley PATBNTBD MAY 8, 1906.

H` A. MOYER L E. G. LATTA. TYPE WRITING MACHINE.

' APPLICATION FILED APR.18. 1905.

4 SHEETS-SHEET 4.

W1 TNESSES.-

PATENT OFFICE.

HARVEY A. MOYER- AND EMMIT e; LATTA, F sYRAoUsE, Naw YORK. TYPEWRITINGIVIIACIHINE.

Specification of Letters Patent. Anuman nea April 18,1905.- serni No.256.203.

Patented may s, 190e.

To aZZ whom it may concern:

the accompanying' drawings, is a full, clear,

and exact description.

This invention relates' to im rovements in type-writing machines of thec ass commonly known as visible or "rontstrike machines, 'and refers.morel particularlyl to the type-bar action andl itsassociated-mechanism, including the platen-shifting and ribbonvibratingmechanisms, v

In this class of machines the type-bars are pivoted in a circular arebelow the platen so' as to strike at one and the same printingoint, andin the employment of a single key.- board each type-bar' is providedwith a plu-A rality of type, and its supporting-segment is s'hiftable,so as to bring either type' of the same bar to one and the sameprinting-point when operated.

One of the primary objects of this inven-v tion is to bring all of theparts into compact arrangement and still leave ample clearance ,for thefreeV action and adjustment oany one of the parts without interferencewith the others.

Another object is to provide a typebar action which may be operatedunder an exs tremely light pressure and movement of the keyand in whichthe ty e-bar is thrown to the printing-point un er an acceleratedmovement and is locked inits position of rest aga-inst rebound.

A further obj ect is to provide s ecial mechanism to prevent theentrance o .dustor dirt to the type-bar and link-bearings and at thesame time to aiiord a simple and durable bearing for each type-bar whichis independent of the others and enables any one typebar tobe removedwithout distu bing the bearings for the other bars.

A still further object is to `providea comparatively `light universalbar within the beingto secure the instantaneous vlbration ofthe ribbonjust'before the type reaches the printing-point, so as to avoid any loadupon the initial movement of the key in throwing its type to theprinting-point.

Another object is to support the type-har' segment free from themainframe so as to avoid the use of guides or similar power-con sumingfriction devices and still maintain the segment in o erative positionagainst endwise' or latera movement or vibration.

Other objects relating. to the specific mechanisms hereinbeforementioned will be brought out in the following description.

In the drawings, Fi re 1 is a top lan of l the greater portion o ourimprove typewriting machine below the platen, portions of the framebeing broken away and some of the type-bars and their actuatingmechanism being omitted to show more clearly the construction andoperation'o the several mechanisms. Fig; 2 is a longitudinal verticalsection through the machine seen in Fig. 1, showing in addition theretothe platen. Figs,- 3 and 4 are detail views of a portion of one of thetype-bars and its hanger and dust-guards. Fig. 5 is a plan of the sprindust-guard seen in Fig. 3. Fig. 6 is a side e evation of a ortion of oneofthe type-baractuating mec anisms, including `the key and itssupplortingbracket. Fig. 7 is a rear elevation of the typ e-bar-suyporting segment and other mechamsrns at t e rear ofsaid-segment,including some of the intermediary evers and theirsupporting-segmentsand also the universal bar and ribbon-vibratingmechanism. Fig. 8 is a front elevation of the type-barLsupport'- ,ingsegment, showin some o the individual t e-bar hangers an one of the te-bars as t own to the printing position. top plan ofthe'type-bar-supporting segment and 1ts su porting and shifting means,show' ing also t e support for the intermediary le- -vers and theuniversal bar and parts attached thereto.

s This machine comprises, essentially, a rectangular frame 1, a platen2, and ribbon 3; a typebar-supportin segment 4, upon which is pivoted aseries o type-bars5; a-second circular segment 6, upon which is pivoteda series of intermediary levers 7, and a series of keys 8, which areconnected by draw-rods 9 to the intermediary levers 7, the latter le-Avers `being connected to their respective typebars by means ofthe links10..

The main frame 1 is especially adaptedto 'conform to-the compactarrangement of. the various mechanisms and is preferabl -rec.

ig. 9 is a" roo tangular kin top plan and provided wit suit- A ablecorner-posts 11, the iront inclined extension'l12, in which the keys 8are located, anda top 13, having tsrear portion depressed at 14 toreceive the platen 2while the front portion is substantially fiat andreceives suitable casings 15 Jfor the ribbon reels or spools. vided withsuitable rubber feet 16 `ior a purpose well known, while the front endof the vtop is provided with a depending shield 17 and a suitabletype-bar rest 18, which is located just at the rear of the shield, saidshield being disposed lin an are concentric with the type-bar rest 18and is of sufficient depth to conceal the front ends of the typebars. f

The platen 2 may be mounted upon any suitable carriage, not necessary toherein illustrate or describe and is only shown to indicate-its positionwith reference to the frame and type-bars and also to showtheassociation between the platen and supportingframe, particularly withreference to the depression v14, by means of' which the platen may beiiiateriallv lowered.. Y

The ends of thc ribbon 3 are wound upon suitable spools or reels, (notshown,) but which are located within the casings 15 at opposite sides ofthe center ot the top 13, and the'intermediate portion oi said ribbon issupported close to the platen in a suitable guide 20, which is mountedupon the free end ol a vibratory frame or support 21, ex-

tending downwardly and rearwardly under the platen 2 and secured at itsrear end to a rocking frame 22. This 'l'rame 22 is pivoted at 23 to thetop of" the mainframe and is provided with an viipwardly-projectingescapement-pawl 24, which is adapted to coact with any suitableescaiiement mechanism. (N ot 'necessary to herein illustrate ordescribe.)

f The type-bar-supporting segment 4 is disposed below and slightly iniront of the platen 2 and consists of acircular segment of' a metal ringinclining upwardly and rearwardly from its lower central portion andhaving its upper and lower edges formed l with beads 25, which areslotted at intervals at 26 to receive a number of individual hangers 27Jfor the type-bars 5. Thesefslots 26 are disposed 1n radial linesextendingr `from the printing-point at the iront 'tace of the platen andare cut back to the base of the beads to receive the individual hangers27 and hold theni separated one'from the other. It

therefore follows that these several hangers 27 are also disposed 'inradial lines from the printing-point. Each oi said hangers consists ot acomparatively thin 'strip of metal' closely in -its slot 26 andthickened fitting centrally for receiving an'individ ual .clamping-screw2X, as best seen in Fig. 2 and 8, the upper ends ol said hangersextending beyond the upper bead 25 and terminating in anl are concentricwith the segment 4. It is The corner-posts r11 are proto remove any oneof the screws,

without disturbing any oi the other hangers.

or the type-bars which are supported thereby. Another advantage inmounting the hangers in the manner described upon the Jfront face of thesegment 4is that the screwheads face the open front of the machine inalinement with the space between the bottom of the shield 17 and upperrow of keys 8,

l so that a screw-driver or similar implement may be readily insertedthrough such space and thereby permit the removal of any one of thehangers and its type-bar without in any way disturbingv the position ofthe other type-bars or hangers.

In ,this class of machines having a single 'keyboard and in which thetype-bars are provided with two or more type it is 4necessary to shifteither the platen or the segment-to enable either yof the type to bebrought to one and the same printing-point, and in this instance we haveshown the segment 4 as shiftable and as mounted upon iront and rearsupporting-levers 30 and 31, land in order that these levers may notinterfere with the operation of the other mechanisms of the machine theopposite ends of the segment 4 are provided with depending arms 32 andwith lugs or ears 33, the derearwardly-projecting pending arms 32 beingspaced` apart-a suficient distance to permit the interposition ot' thedraw-rods 9 and still leave ample clear-v ance for the free operation ofthe several draw-rods and movement of the segment 4 without friction orinterference one with the other. This segment-shifting'mechanism is bestseen in Figs. 1, 2, and 8, and it will be observed that we provide twoof the lowerlevers 30, one at each side of the frame and a correspondingnumber of the upper support- ITO ing-levers 31, whichare similarlylocated at opposite sides of the main frame, or rather at the oppositeends of the segment 4. The

'lower levers 30 are pivoted at 34 to the main frame 1 in Jfront of thesegment 4, and their rear endsare pivoted at 19 to the lower ends of thearms 32,' the front ends of the said levers 30 being connected to alforwardly-extending U-shape frame 35, having suitable {niger-keys S6,whereby the frame' and levers 30 may be rocked upon their fulcrums 34 toelevate the segment 4. The upper pair of levers 31are pivoted at theirrear ends at 37 to the main frame 1, and their front ends are pivoted at38 to the rearwardly-projectinglugs or ears 33 on the ends of thesegment 4, the distance between the fulcrum 37 and pivot 38 ofthe-levers 31 being substantially equal to the distance between thefulcrums 34 and pivot 35 of the levers 30, and both faces of the rearend ofthe type-bar proper to depending circulars ears 44, which are oftween the opposed side plates 43 and of a to the combined width of thehead of the of these levers 30 and 3l therefore move through equal arcsin the o eration of shifti'ng the segment and throng equal distancesabove and beneath radial lines drawn at. right angles to the plane ofthe segment 4 through their fulcrums,so that the segment stands in thesame plane in both its upper and lower positions. The type-bar sevmentis therefore supported solelvby the evers 30 and 3l between the sides ofthe main frame, so as to have a free u -and-down movement without theuse of en guides or bearings, thereby reducing the resistance byfriction and consequent loss of power incidental to the use of guidewaysor end bearings. Each pair of levers 30 and 31 is connected bytransverse bars 40 and 4l to stiifen or brace them against torsional orlateral strains, and thereby more firmly sustain the segment againstendwise vibration or displacement.

The upwardly-projecting ends of the hangers 27 above the segment 4 arepreferably circular, and the rear Aends of the ty e-bars 5 are eachprovided with asheet-meta hood 42, which is folded upon and secured toopposite form opposed side plates 43 and an intervening spacesubstantially equal to the thickness of the type-bar and upper circularend of the hanger, said side plates being provided with slightly-greaterdiameter than that of the circu ar head of the hanger and are pivoted toopposite faces of said hanger concentric with its circular head. Theobject in making the ears 44 of slightly-greater diameter than thecircular head of the hanger is to permit the use of a semicirculardust-guard 45, constituting-a split spring-band which is inserted-between the opposed plates 43 of the typeown tension against'theperiphery of the ears 44. The portion of this dust-guard between itsends is reduced in Width at 46 to substantiallythe width of theintervening space belength substantially equal to the width of theportions of said plates between their pivots and type-bar, while theopposite ends of the dust-guard have a width substantially equal hangerand opposite ears 44, so that when the dust-guard is inserted betweenthe opposed plates 43 by turning it edgewise vertically and then tiltingitsconcave face downwardly the reduced portion 46 lies between theplates, While the opposite Wider ends cover the joints between theplates arid head of the hanger and effectively exclude the dust fromsuch joints. When this split spring dust-guard is placed in operativeposition, it automatically seats itself against the periphery ofthe ears44 by its own tension,a.nd is therefore selfretaining' and moves withthe type-bar around the circular upperface of the hanger,A

l but not in contact therewith, by reasonof the larger diameter of theears 44, which hold the spring a slight distance away from the hanger.The forwardly-project-ing ends of the side plates 43 are reduced inwidth to about the width of the adjacent end of the type-bar properand`are rigidly secured to said type-bar by suitable rivets 5; but the rearend of the type-bar proper is made to terminate a short distance fromthe rear end of the hood 42, so as to leave a space opening fromthe rearend of the hood, in which space is pivoted at 10 the front end of thecorresponding type-bar-actuating member or link 10. These links 10extend rearwardly from the heels of their respective type-bars and arepivotally connected to their respective intermediary levers 7 above thefulcrums of the latter, which are in turn pivoted in a circular arc uponthe circular segment or comb 6, both of which are arrangedconcentricwith the 4arc in which the type-bars are pivoted.

Thesegment or comb 6 is rigidly secured to thernain rframe of themachine and is provided witha series of radial slots 47, receiv-` ingthe levers 7, which are fulcrumed inter- I mediate their ends upon acommon Wireor pivotal support 48, each lever having an opensided slot orbearing 49 in its front face or side to receive said pivotal wire and topermit each intermediary lever to be readil assembled or removed fromsaidwire wit out disturbing the others. These intermediary levers 7 areall of the rst order and extend some distance below their fulcrums, andtheir lower ends are connected by the draw-bars 9 .to their respectivekeys 8 through the medium of a pair of parallel key-levers 50 and 51,which are pivoted in planes one above the other u on suitable su portin-brackets 52.

It wi be observed t at the ower ends of the intermediar levers 7 towhich the drawbars 9 are attac ed are disposed in a circular arctransverselylof the machine, and therefore the levers at`the ends of thearc are ele- IOO IIOl

vated a considerablel distance above those at the center, and-wespreferto kee the drawbars 9 in as nearly a horizontal p ane as possible, andfor this purpose the draw-bars 9, which are connected to the intermedialevers at or near the center of the arc 6,1h7ave theirforward endsconnected to the lower levers 50, while those which are connected o theintermediate' levers nearer the ends 'of the segment 6 have their frontends connected to the u per levers 51, which are extended rearwar lyfrom their fulcrums for this purpose. y

Where the lower levers 50 are connected to the draw-bars, the upperlevers terminate at their fulcrums, and, on the other hand, Where theupper leversare connected to the drawbars the lower levers 50 terminateat their fulcrums, and in both cases where the levers are connected tothe drstw-bars; these levers ISO are of the first order-that is, theyextend I the ty e-bar and its actuating-link 10 to pre# forwardly andrearwardly from their fulvent tiie entrance of dust in the bearing andcrums, the rear ends being connected to the that the spring dust-guard45 serves a similar draw-bars, while the front ends are pivotallypurpose of protecting-the joint between the S connected to the keys 8.heel of the type-bar or ears 44 andhanger 27. 7c We have`previouslystated that the levers By mounting the keys 8 in theinanner prev5() and51 of eachpair are substantially parallel viously described upon theends of parallel leand project forwardly equal distances from vers it isevident that aparallel key-motion -their fulcrums, and the keys 8 areprovided is provided and that by connecting this key io with dependingstems 53 and are pivoted to so as to affordv an accelerated action ofthe 75 the forward ends lof the levers 50 and 51, so type-bar from itsposition of rest to the printthat by depressing one Aof the keys theforving position'the key may be depressed under l Ward ends of both ofits supporting-levers`50 an extremely light touch and at the same and 51are depressed, and the rear ends of the time always travels in avertical plane. An-

15 levers which are connected to the draw-bars other object of thisaccelerated movement of 8o consequently throw upwardly and forwardly,the type-bar is that the momentum given thereby rocking the levers 7upon their fulto the type bar in throwing it from its c'rums andactuating the corresponding typenormal to its printing position isutilized bars through the medium of the connectingthrough the medium ofthe' intermediary lezo links 10. Each of the keys 8 and its'correvers tooperate a universal bar or bail 57, 85 sponding type-bar and actuatingmechanwhich in turn is connected to actuate the ribisml is returned toits normal position by bon-vibrator. In order to accomplish this meansof a spring 54, which has its upper end without adding any appreciableload to the connected to the upper lever 51 near its fultype-bar action,the lever 7 is providedwith 2'5 crum, while its lower end is connectedto the an upward extension 58, which when the 9o lower lever 50 near itspivotal connection type-bar is thrown to the printing position with thekey, whereby when the key is dehas a rapid rearward movement and onlyenpressed the spring is tensioned, and such tencounters the universalbar near .the limit of sion operates to restore the key and its consuchmovement, so that the levers -7 move 3o nections with the type-bar totheir normal freely through the greater part of their stroke, 95pOStOIiS. at which time the type-bar has acquired its It will beobserved of the draw-bar 9 that maximum momentum, and this operates tothe pivotal connection with the keylever 50 further impel the upper endsof the levers 7 is nearly ina direct line between the fulcrum rearwardlyuntil they engage and operate the 3 5 of said lever and connection ofthedraw-bar universal bar 57 without any extra pressure ioo with theintermediary lever 7, andtherefore upon the keys. In order that thisuniversal when the key is depressed the intermediary bar may operate aseasily asl possible, it is," lever and its type-bar are thrown to theprovided with rearward extensions 59, to printing position with anaccelerated movewhich are connected upwardly-extending par- 4o ment andare also locked intheir normal poallel links 60, and tthese links are inturn pivio 5 sition of rest against rebound. This locking oted to themain frame at the rear of the uniof the type-bar in its position of restis furversal bar. The forward links 60 are mountthcr facilitated byproviding the bracket 52 ed upon a rock-shaft 61, to which is securedrawith a rearward extension 55, having an inrearwardly-projecting arm 62,and this arm 4 5 clined front end for engaging the front end of 62 isconnected by a link 63 to the ribbon-vii io the draw-bar when theoperating parts return brating frame 22, and it therefore follows thatto the norinal position, in which position the when the upper end of oneof the levers 7 is inclined caineface on the rear end of the eX- broughtinto engagement with and operates tension 55 forms an abutment for theadjathe universal bar 57 vthe free end of the arm :o cont Aend of thedraw-bar 9' to prevent for- 62 is rocked upwardly, and thereby rocks the115 ward movement of the draw-bar, inits piv front end of the frame 22upwardly upon the otal slot in the lever 50, thereby locking the pivot23, this movementr being sufficient to intermediary lever and type-.baragainst rebring the ribbon-guide 2O close to the front lJOUHdface of theplaten 2, thereby forcing the rib-I 55 The brackets 52 are secured toand depend bon 3 into the path of the printing-type. no froin transversebars 56, which in turn are This action of the ribbon-vibrator is almostsecured to the sides ofthe main frame of the instantaneous and near theliniit'of the print machine and are spaced apart and stepped ing strokeof the type-bar` so that as soon as one above the other from front torear ofthe the type-bar recedes from the platen the rib- 6o extension1.2. bon-vibrator is at once freed and returns to x25' It will be seenupon reference to the foreits normal position. v 1 I I y n n goingdescription tiiat the part 42, which is By pivoting theribboii-vibrating frame Z2 made of a folded piece of sheet metal secured'in a plane below and at the rear of the` platen to the rear end ofthebar 5, fornis a hood for l it is evident that the printing portion ofthe 6g protecting the pivotal connection 46 between l ribbon is not onlymoved upward and downi 3o ward, but is also moved toward and from thefront face of the platen, s as not to blur or otherwise soil thevpaperbeing printed upon when the type-bars are not in action.

In order that the universal bar may be given the same movement by eachintermediate lever during the printing action of the type-bar, the upperends of the extensions 58 which contact with the universal bar and alsothe universal bar are disposed in circular arcs concentric with the arcinwhich the intermediate levers are pivoted, and the operating ends ofsaid intermediate levers are therefore equidistant fromtheir fulcrums,and the connections'between said intermediary levers and the keys arealso so arran ed as to move all of the levers 7 through equa arcs, andtherefore each intermediary lever produces the same action upontheribbon-vibrator In Fig. .6 of the drawings we have shown4 a key andits stem in section. The key-stem consists of a light sheet-metal 'tubewhich is split longitudinally through one of its sides, and its upperend is expanded or swaged outwardly to form an annular shoulder or head75, while the lower portion of said'stem is somewhat flattened or Ushape in cross-section, so as to leave an open-sidedslot 76. in whichthe adjacent ends of the levers and 51 are inserted and pivoted to thesides of the flattened portion, so as to practically conceal the pivots,or rather the open joints, and the closed side at thefront of the stemserves a similar purpose and also presents a` neat ap-` pearance asidefrom its service in excluding .dust and dirt from the joint. Thefinger-key 8 is made of rubber or may be made of a composite material,`and if made of rubber it is placed upon the upper end 'of the stem, soas to inclose the head and subsequently vulcanized, thereby permanentlyattaching it to the stem. l

Upon reference to Fig. 7 it will be observedl that the ribbon-guide 20has a central opensided slot 76, forming opposed arns, each of which isprovided wit-ha vertical slot 77, and

the outer wall of each slot has a central transverse slit 78, throughwhich the ribbon may be inserted edgewise into the slots 77. Thisformation of ribbon-guide aords an easy means of attaching the centralportion of the ribbon to the guide without threading the ribbon endwisetherethrough.

The associated parts of the several mechanisms hereinbefore describedare particularly light and compact and at the same time are constructedwith a view .to durabil-l tween the fulcrumf Said lever and the point'firmly riveted to the side pieces.

.obviate any lost motion of the key, as 8, in

the operation of the type-bar, and at the same time to afl'ordapproximately a togglelock in the flexing joint between the drawbar 9and its actuating-lever 50 when the type-bar is at rest'to preventrebound. Another important factor in 4maintaining ease of action andpermanent alinement is they locatin of the'side plates on the heel ofthe typear so .as to lap` upon the side faces of the hanger and allowthe pivotal pin to play freely in the hanger and at the same time be 'ltwill also be observed that the universal bar 57 is of li ht tubularstructure and is suspended Wolly by the swinging links 60, so as to havean easy parallel motion backwardly and f'orwardly, the engaging face ofthis tubular universal bar being located some distance y.below thepivotal bearin s for the links 60,

thereby affording an easy everage, which enables the universal bar to beactuated under an extremely light pressure, which makes it practicableto transmit motion from said levers 7 to the ribbon-vibrator. We havepreviously'intimated that the point of connection between the draw-bar 9and its actuating-lever 50 has a slight lost motion', which is '95accomplished by providing j an elongated bearing or slot in the end ofthe lever 50, the object of whichv is to allow theadjacent end of thedraw-bar 9 to ride freely over the end or abutment on the extension 55.

The o eration of our invention is as follows: en it is desired to printwith' the lower-case type, it is simply necessary to press the desiredkey 8, which has a parallel vertical motion andoperates the lever 50,105

thereby drawing the lower end of the lever 7 forwardly through themedium of the drawrod 9, which throws the upper end or extension 58 ofthe lever 7 rearwardly'with an accelerated motion, and this acceleratedmolio tion is in turn transmitted to the type-bar through the medium ofthe link 10, which is connected to the type-bar above'its'pivot. As thetype-bar continues its upward movement toward the platen with anaccelerated i 15 motion the extension 58 is simultaneously travelingtowardthe universal bar 57, andthe momentum given to the type-baroperates to carry the upper end of the lever 7 against the universalbar, thereby effecting 12o an upwardvibration of the central portion ofthe ribbon in front of the platen and in the path of the printing-t e.As' soon-as the printing operation )is e ected the type-bar and itsactuating mechanism, including the, 125

key 8,' is returned to its normal position by the spring 54, and theseparts are locked in their position ofrest by the engagement of the frontend `of the draw-bar 9 with the abutment on the end'of the extension 55,the rib; 13o

IOO

bon-vibrating frame and1 universal bar returning to their normalpositions by gravity,

of the keys 36 at the front corner or corners of the U-shapesegment-shifting frame 35,

whe upon the rear ends of the levers 30 and segment 4Aconnected theretoare elevated the desired distance to bring the upper-case type to thesame printing-point. The shifting mechanism of the segment 4 is limitedby suitable stops 4',- and as soon as the pressure upon the keys 36 isrevolved the segment returns by gravity to its normal posltion. It willbe observed that the segment-supporting arms 30 and 31 move equaldistances above and beneath lines drawn at right angles to the segmentand passing through the\ ulcrums 34 and 37, respectively, therebymaintaining the segment in the same plane in both of its extreme upperand lower positions.

What we claim is 1. In a type-writing machine, the combination with apair of opposed side plates, of a type-bar, an actuatin member and ahanger each having one en located between the side plates, and attachedtl1ereto,-said plates being united above and covering the adjacent endof the actuating member.

2. In a type-writing machine, nation of a type-bar, and a hood composedof a piece of folded sheet metal rigidly connected to the bar, and

-pivotally connected to the actuating memer, and hanger and embracingbetween its sides, the adjacent portion of the bar, actuating 'membenand hanger.

In. a type-writing machine, the combination of a type-bar, its hanger,and actuating member, each consisting of a single piece oi' metal, witha sheet-metal hood rigidly connected to the bar, and pivotally connect-`ed to the hanger and actuating member said hood having opposite sides,embracing between them-the bar, actuating member, and hanger.

4. In a type-writing machine, the combination with a type-bar7 itshanger, and a rearwardly-extendin g actuating member pivoted tothetypebar, of a hood connecting the bar to its hanger, and covering theadjacent ivoted end of the actuating member.

5.' An a type-Writing machine, the combination with a `type-bar, itshanger, and actu# ating member, of. a. sheet-metal hood connectlng saidparts and forming a dust-excluding cover` extending over4 the pivot ofthe actuating' member.

6. In a type-writing machine, the combination ith'a type-bar and hangerboth substantally the same thickness, of a pair of opposed parallel sideplates closely fitting the combiits actuating member,-

upon the sides of the'bar and hanger and pivotally connected to thehanger, and an actuating member ior the bar loosely pivoted between theside plates at a point above and in front of the hanger when the partsare in their normal position, said plates being united above the pivotof the actuatingv member.

7. In a type-writing machine, the combi-4 nation, of a type-bar, itshanger, and end actuating member pivoted to the type-bar,

with a folded sheet-metal hood extending over the inner end of thetype-.bar and adjacent pivot of the actuating member and4 pivotallyconnected to the han er.

8. 'In a type-writing. mac ine, the combination with a type-bar and oposed side plates thereon, a hanger, a remova le sheetmetal dust-guardself-'retained between the side plates Aand projecting rearwardly overthe hanger.

9. In a'type-writing machine, the combination of a type-bar and opposedside plates thereon, a central hanger, a curved sheetmetal dust guardarran ed .between the plates and constituting a c amp lby which it isself-retained between the lates.

10. In a type-writing machine, the combination with a type-bar, ofopposed circular bearings attached to the bar, a hanger-located betweenthe bearings and havingha circular l end of smaller` diameter than at ofthe bearings of the bar, and a separate spring-retained sheet-metaldust-guard closely itting between the bearings and concentric with thecircular end of the hanger.

e 11. In a type-writing machine, the combination with a type-bar, ofopposed pivotbearings having forwardly-projecting portions secured tothe bar and of less width than' the pivot-bearings, a separatespring-retained sheet-metal dust-guard reduced in width betwce. its endsto iit lbetween the bearings and its ends of sufficient width to rest onthe bearings .and exclude dust from the pivot.

12. In av type-writing machine, the combination with a type-bar, of apair of opposed. ears, a hanger between the ears and a detachable'curved sheet-metal dust-guard of spring temper springing against. theperiphery of said ears.

. 13. In a typewriting machine, the combination with-the platen of aseries of pivoted type-bars arranged to strike toward the front of theplaten, a shiftable segment mov- IOO IIO

able independently of the platen supporting segment, and means'forshifting the segment.

14. In a type-writing machine,'the combination loi: a series of pivotedtype-bars arplaten, a movable segment supporting the ,ranged to striketoward the front of the type-bars,opposite arms pivotally connected these ment.

15. n a type-writing machine, the combination with a platen, of a seriesof pivoted type-bars arranged to strike the frontl 'of the platen; anda' movable segment shitable Selparately fromthe platen and supporting te bars, of ay air of opposite armspivoted to the ends o the segment andto the frame of the machine inrear of the segment on a line ata righ-tangle to the plane ofthe segment andmidwa between the upper and lowerpositions o the pivotal connection o'r' the arms to the segment, andmeans for shifting the vse ment.

16. n a type-Writing machine, the combil, nation with a series oftype-bars arranged to strike the front of the platen, and a movableframe, and means for shifting the segment.

segment supporting the bars, of a pair o ar'ms pivoted to the u per partofthe segment, and to the machineame in rear ofthe segment, one or morearms being pivoted to the lower side of the segment and to themachineframe in front of the segment, the frame-pivots being inall caseson a line extending at right angles tothe plane of the segment mide' Waybetween the 4Vupper land lower positions of the segment-pivots wherebythe segment is in the same plane in either position, and means forshifting the segmen 17. In a .type-Writing machine, the combination witha platen, of a'series' of pivoted type-'bars arranged to strike thefront of the platen, and a movable segment shiftable se arately from theplaten and supporting tllie bars, of a pair of r1 'idly-connected arms'ivoted to the ends o the segment in af ane above its central portion'and to the mac eframe in rear of the segment, and means for vibratingthe segment.

18. In a type-Writing machine, the combination with a platen, of aseries of pivoted type-bars arranged to strike the front of` the iplaten, and a movable segment shiftable se arately from the platen andsupporting t e bars, of two pairs `of arms, those of each pair beingrigidly connected to each other and ivoted to the segment and to themachine- 19. In a type-'writing machine, the combination with a platen,of a series of pivoted t pe-bars arranged to strike the front of the paten, and a movable segment shiftable se arately from the platen and suporting tlli bars, of oppositearms pivoted to t e segment and to themachme-rame, a cross-bar of angular cross-section rigidlysecured to thearms between their connectionswith the segment and frame,

and means for shifting the segment.

ytion With'both levers, and a of the rodv when inits 20. Inatype-writing machine, a key-stem of tubular form havin(r its upper endexpanded to form an enlarged:` head and its lower end flattened, a keyattached directly to the enlar ed head, in combination with a type-baran connections between the key and typevbar, one of which connections issecured to the ilat portion of the key-stem. 21. Inafront-striketype-Writing machine, a type-bar pivoted to strike upwardly andrearwardly, a bell-crank at the -front of the tipe-bar, amanual attachedto one end of t e heli-crank, a ivoted link parallel with the o eratingendp helica spring connectirigthe link and bellcrank and acting toreturn the bell-crank to its normal osition. 4

22. Ina ont-strikecty'pe-writing machine,

of the bell-crank, and a a type-bar pivoted to strike upwardly andrearwardly, a bell-crank at the front of thel type-bar, an operating-keyconnected to. one end .of the bell-crank, a pivoted link parallel withthe bell-crank, one of the last-named arts being located above theother, and a iieiical s ring attached to one of said arts near itsigilcrum and to the other of said arts farther away from itsy fulcrum.

23. A In a front-striketype-Writing machine,

a type-bar pivoted to strike upwardly and rearwardly, a key and parallellevers located one above the other at the front of the typebar andhaving corres onding ends connected to the keys, one of the levers beingextended beyond its fulcrum and connected indirectly to its type-bar,and a helical s ring I oo having its o `posite ends attached to saidlevers at di erent distances from their fulcrums. 24. In a type-writingmachine, the 'combination with a series of type-bars and fingerkeys, ofseparatev connections between each type-bar and its key, eachconnectio'n including a slotted lever and adraW-rod having one endpivoted in a slot of its lever to permit a limited endwise movement ofthe rod inde-I pendently of the lever.

25. In a type-writing machine, the combination of 'a type-bar andfinger-key, connections between the type-bar and key including a leverand a connecting-rod joined together With a lost motion whereby the rod`pendently of the lever. l

` 26. In a type-writing machine, a type-bar action including a lever anda-draw-rod conmay move in the direction of its length indenected with'alost motion constituting a iieX-` or abutment ening joint, and a fixedyst o gaged by the end of the ro to limit the movement of said rod whenin its normal position.

27. In a t e-writing machine, altype-bar rio` action, inclu ing twoleversA and an interposed cconnecting-rod havingvipJi-(votal connecedabutment engaged by one end normal position.

L28. In a type-writing machine', a type-bar concentric with, but of lessradius than. the 5,5

action including a key and a lever actuated by the key and having a slotin one end, a draw-rod pivote@L in the slot and movable endwise therein,the'slot being disposed at an angle with the direction of extension ofthe rod.

. 29. In afront-strike'type-writingmachine, a type-bar having aplurality of type and pivoter to strike upwardlyand rearwardly, a platenand a segment, one of which partsis movable towardV and from the otherin combination with a vertically-movable key-stem, a

. lever and pivoted to the key-stein, an individual hanger for saidlever, a second lever connected to the ty e-bar, and aconnectmgrodpivoted to said evers.

30. In a front-strike type-writing machine, a ty e-bar action comprisinga pivoted ty ebar avinfr a plurality of type, a lever ulcrumed bellowand at therear of the type-bar pivot and connected to said type-bar, avertically-movable key-stem, a second lever and having one end pivotedto the key-stem, an

individual vremovable hanger for the secondl lever, a rod pivoted. tothe other end of the second lever and pivoted directly tothe firstnamedlever, and a third lever vpivoted to said hanger and to the key-stem tohold said stem in an upright position. 31. In a front-strik type-writingmachine, a) series of type-bars pivoted in a circular arc to strikeupwardly and rearwardly at one and the same rinting-point, incombination with a series o levers also pivoted in a circular arc at therear of the type-bar pivots, links connected to the levers and type-barsabove their fulcrums, meansto actuate the levers and a universal bardisposed in a circular arc in a.

plane above and at the rear ofthe links, each ever having an extensionabove the link engaging and operating the universal bar when the leveris actuated.

32. In a front-strike type-writing machine, a type-bar action includinga type-bar and a lever of thefirst order connected to the typebar, and auniversal bar above and at the rear of the fulcrum of the lever andengaged and operated by the `upper end of said lever above thisconnection with'the type-bar.

33. In a front-strike type-writing machine, the combination with 'thetype-,bar action, Vin'- cluding a series of levers pivot'ed in acircular arc and a universal bar disposed in an arc arc in which thelevers are pivoted, said universal bar being engaged and actuated by theupper ends of said levers.

34. In a type-wu ting machine, the combi-- nation with a series oftype-bars pivoted in a circular arc to strike upwardly and rearwardly atone and the same printing-point, of a series of upright levers eachconnected to one of the type-bars and extending above its connectionwith the type-bar, a universal'bar engaged and operated by the upwardextensions of the levers and separate means for actuating the levers.

35. In a type-writing machine, a type-bar and actuating means therefor,inl combination. with a ribbon-vibrator and escapementpawl both pivotedon the same axis, a universal bar actuated by said ine-ans and connectedto operatev the vibrator and escapement-pawl. f

36. In a type-writing machine, a pair of levers fulcrumed on the frameof the machine and extending toward each other from their fulcruins indifferent planes, one above the other, and a type -bar-supportingsegment mounted on the free ends of and supported wholly by the freeends of said levers.

37. In a type-writing machine, two levers fulcrumed on the frame `of themachine and extending toward each other in different planes, one abovethe other, and a type-barsupporting segment pivotally mounted upon thefree ends of said levers, the'levcr in the .lowest plane extendingforwardly from its fulcrum and provided with a finger-key whereby it maybe rocked to shift the segments vertically.

38. In a type-writing machine, a series of type-bars pivoted in avertical arc, a series of upright levers pivoted in a similar arc andeach connected 'to one of the type-bars, a system of keys for operatingsaid levers, and a universal bar curved in a vertical arc substantiallyparallel with that in which the levers are pivoted but above thelever-pivots in the path of the upper ends of the levers.

In witness whereof we have hereunto set our hands this 14th dav ofApril, 1905.

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